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DTC B1193 (2017 2018 2019 2020)

DTC B1193  : Gauge control module lost communication with Steering Switch (LIN bus connected)

DTC Description DTC
B1193 Gauge control module lost communication with Steering Switch (LIN bus connected)  

DTC (Gauge Control Module)

NOTE:

If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A - Refer to:


Body Electrical Troubleshooting - B-CAN System Diagnosis Test Mode A - Initial Communication and DTC Checks (2017 2018 2019 2020)
  1. Problem verification

    - 1. Clear the DTCs with the HDS.

    - 2. Turn the vehicle to the OFF (LOCK) mode and then the ON mode.

    - 3. Wait for at least 4 seconds.

    - 4. Check for DTCs with the HDS.

    DTC Description DTC
    B1192 Gauge control module lost communication with Battery sensor ECU (LIN bus connected)  
    B1193 Gauge control module lost communication with Steering Switch (LIN bus connected)  
    B1196 Gauge control module lost communication with Battery Blower (LIN bus connected)  

    Are DTC B1192 and/orB1193 indicated?

    YES: B1193 indicated

    Go to step 2.

    YES: B1192, B1193, and B1196 indicated

    Go to step 6.

    NO 

    Intermittent failure, the system is OK at this time. Check for loose or poor connections.

  2. Fuse check

    - 1. Check the following fuse.

    Fuse No. C16 (10 A)
    Location Under-hood fuse/relay box

    Is the fuse OK?

    YES 

    Go to step 3.

    NO 

    Replace the fuse. If the fuse blows again, repair a short to ground in the No. No. C16 (10 A) fuse circuit.

  3. Open wire check (+B BACK UP line)

    - 1. Turn the vehicle to the OFF (LOCK) mode.

    - 2. Disconnect the following connector.

    With navigation: Audio remote/HFL-navigation voice control switch 16P connector
    Without navigation: Audio remote-HFL switch 16P connector

    - 3. Measure the voltage between test points 1 and 2.

    Test condition Vehicle OFF (LOCK) mode
    With navigation: Audio remote/HFL-navigation voice control switch 16P connector: disconnected
    Without navigation: Audio remote-HFL switch 16P connector: disconnected
       
    Test point 1 With navigation: Audio remote/HFL-navigation voice control switch 16P connector (female terminals) No. 16: Without navigation: Audio remote-HFL switch 16P connector (female terminals) No. 16:
    Test point 2 Body ground
    GHH321652Courtesy of HONDA, U.S.A., INC.

    Is there battery voltage?

    YES 

    The +B BACK UP wire is OK. Go to step 4.

    NO 

    Repair an open or high resistance in the wire.

  4. Open wire check (SGND line)

    - 1. Check for continuity between test points 1 and 2.

    Test condition Vehicle OFF (LOCK) mode
    With navigation: Audio remote/HFL-navigation voice control switch 16P connector: disconnected
    Without navigation: Audio remote-HFL switch 16P connector: disconnected
       
    Test point 1 With navigation: Audio remote/HFL-navigation voice control switch 16P connector (female terminals) No. 1:
    Without navigation: Audio remote-HFL switch 16P connector (female terminals) No. 1:
    Test point 2 Body ground
    GHH321655Courtesy of HONDA, U.S.A., INC.

    Is there continuity?

    YES 

    The SGND wire is OK. Go to step 5.

    NO 

    Repair an open or high resistance in the ground wire or poor ground (G507).

  5. Open wire check (LIN (METER) line)

    - 1. Disconnect the following connector.

    Gauge control module connector A (32P)

    - 2. Check for continuity between test points 1 and 2.

    Test condition Vehicle OFF (LOCK) mode
    Gauge control module connector A (32P): disconnected
    With navigation: Audio remote/HFL-navigation voice control switch 16P connector: disconnected
    Without navigation: Audio remote-HFL switch 16P connector: disconnected
       
    Test point 1 Gauge control module connector A (32P) (female terminals) No. 24 - Refer to:
    Gauge Control Module Input Test (2017 2018 2019 2020)
    Test point 2 With navigation: Audio remote/HFL-navigation voice control switch 16P connector (female terminals) No. 14:
    Without navigation: Audio remote-HFL switch 16P connector (female terminals) No. 14:
    GHH321658Courtesy of HONDA, U.S.A., INC.

    Is there continuity?

    YES 

    Replace the audio remote/HFL-navigation voice control switch (with navigation) or the audio remote-HFL switch (without navigation) - Refer to: ANC/Active Sound Control Microphone Removal and Installation (2017 2018 2019 2020),

    NO 

    An open or poor connection in the LIN (METER) wire.

  6. Shorted wire check (LIN (METER) line)

    - 1. Turn the vehicle to the OFF (LOCK) mode.

    - 2. Disconnect the following connectors.

    With navigation: Audio remote/HFL-navigation voice control switch 16P connector
    Without navigation: Audio remote-HFL switch 16P connector
    Gauge control module connector A (32P)Battery sensor 2P connector

    - 3. Check for continuity between test points 1 and 2.

    Test condition Vehicle OFF (LOCK) mode
    With navigation: Audio remote/HFL-navigation voice control switch 16P connector: disconnected
    Without navigation: Audio remote-HFL switch 16P connector: disconnected
    Gauge control module connector A (32P): disconnected
    Battery sensor 2P connector: disconnected
       
    Test point 1 With navigation: Audio remote/HFL-navigation voice control switch 16P connector (female terminals) No. 14:
    Without navigation: Audio remote-HFL switch 16P connector (female terminals) No. 14:
    Test point 2 Body ground
    GHH321661Courtesy of HONDA, U.S.A., INC.

    Is there continuity?

    YES 

    Repair a short to ground in the LIN (METER) wire.

    NO 

    The LIN (METER) wire is not shorted. Go to step 7.

  7. Open wire check (LIN (METER) line)

    - 1. Check for continuity between test points 1 and 2.

    Test condition Vehicle OFF (LOCK) mode
    With navigation: Audio remote/HFL-navigation voice control switch 16P connector: disconnected
    Without navigation: Audio remote-HFL switch 16P connector: disconnected
    Gauge control module connector A (32P): disconnected
    Battery sensor 2P connector: disconnected
       
    Test point 1 Gauge control module connector A (32P) (female terminals) No. 24 - Refer to:
    Gauge Control Module Input Test (2017 2018 2019 2020)
    Test point 2 With navigation: Audio remote/HFL-navigation voice control switch 16P connector (female terminals) No. 14:
    Without navigation: Audio remote-HFL switch 16P connector (female terminals) No. 14:
    GHH321664Courtesy of HONDA, U.S.A., INC.

    Is there continuity?

    YES 

    Replace the gauge control module .

    NO 

    An open or poor connection in the LIN (METER) wire.

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